Non-heat-donducting receptacle.



A. EVENSBN.

NON-HEAT connuc'rme REGBPTAOLE.

APPLICATION FILED MAY 31, I911.

Patented Feb. 20, 1912..

2 SHEETS-SHEET 1.

v A. EVENSEN. NON-HEAT CONDUCTING RBCEPTACLE.

APPLICATION FILED MAY 31, 1911.

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ANTON EVENSEN, or cH cAeo, ILLINOIS. 7

NON-HEAT-CONDUCTING RECEPTACLE.

To all whom 'it may concern: I r

' Be it known that I, ANToN-EvnNsEN, a

' citizen of the UnitedStates, and a resident of Chicago, in the county ofCook and State of Illinois, have-invented certain new and useful Improvements in Non Heat Conducting Receptacles; andI do hereby declare that the 'followingis a full, clear, and.

exact description thereof, reference being had to the accompanying drawings; and to the letters of reference marked thereon,v

which form a part of this specification.

in receptacles or vessels provided with nonheatconducting walls, and COIlSlStSOf the matters hereinafter described and more particularly pointed out in the appended claims. w

In the drawings-Figure Iisaview representing a vertical section through are'ceptacle or vessel-having non-heat conducting walls made-in accordance with my inve'n-f.

tion; Fig. 2 is a top plan viewof the same; Fig. 31's a view representing a cross section through the" vessel ina plane indicated 'byi the line 3-3 of Fig. 1;: Fig. 4 v-isa" View representing a vertical section "through a modified form of my improved vessel; Fig. 5 is a view representing a cross sectibn through the same on the line 5-5 of Fig. 4; Fig. 6 is a partial vertical section through a receptacle similar to that shown in Figs.

4 and 5, showing the construction when ap-' plied to a receptacle cylindrical, in form; Fig. 7 is a view representmg a cross section through Fig. 6 on the line 7-7 thereof.

Referring now to that embodiment of my I invention, illustrated in Figs. 1 to 3, A indicates the vessel body which, as shown, is of rectangular tubular form and has upright side walls B and a bottom wall C. Said vessel is open at the upper end and is adapted to be closed by a closure or lid D. Each of the side walls B comprises an outerwall member B and an-inner wall member B laterally spaced therefrom, and intermediate side wall members 6, b which divide the space between said inner and outer side wall members into a plurality of jacket spaces, in this case three, b b 1). The bottom. wall member C also comprises an outerwall member C, and an inner wall member C separated by a space which is divided by intermediate bottom wall members c, of, into a corresponding number of jacket spaces, in' this case three, 0 0 c". The inner and outer sidewall members of the four side walls of the vessel are each connected together attheir vertical edges and are connected at their bottom edges with the inner and outer bottom wall members respectively.

The intermediate side wall members 6, b, of the four sidewalls are connected together at theirvertic-al edges. and all of the interf mediate side wall members I), b of each side of the vessel are respectively connected by air-tight joints to the intermediate bottom j wall members 0, c in the order named. A This invention relates to improvements pluralityof jacket spaces, in-this case three, are thus provided, each completely surrounding the sides and bottom ofthe vessel and arranged in succession one within the other, I The wall members providing said jacket spaces are spaced apart and supported atth'ebottom of the vessel by a plurality of angle blocks or spacing pieces 6 each, having a' horizontal flange e engaged be'twe'enlthe bottom wall members and a vertical flange e engaged between the side fwallmembers. As shown in the drawings, said angle blocks orspacing pieces are arranged 1n sets of three, there-being two sets for each sidewall, each ofwhich -is located adjacenta corner of the vessel. -The spacing pieces arranged as described not only,

hold the bottoms of the wall members accurately in proper relative position during the. ,operation of securing together the partsat' the top of the vessel, but in the use of the latter, serve to maintain the lower parts of said wall members from relative'movement' and therebyrelieve the joints at the top of.

the vessel from strains and "liability to rupture in rough handling, especially when the contents of the vessel is of considerable weight.- The jacket spaces 6 b bfl in the side wall members are closed at their upper ends by plates G, which are rigidly secured to the upper marginal ed es of the side wall members by means a ording' air tight joints. Said plates also serve to hold said side Wall members in proper spaced relation at their upper ends. As shown herein, the

inner side Wall member B and the intermediate side wall member I) are made of less vdept-hithan the other side .wall members, and the'plates G each have verticallyspaced horizontal flanges G, G the latter located within the former andconnected to it by a vertical part g, which forms an upward extension of the intermediate sidewall memberl). This construction provides a recess in the upper end walls of the vessel for the reception of a part of the closure or lid, said recess terminating in the shoulder constituted by the horizontal flange G of the plate G.

The lid or closure D is, in construction, similar to that of the side and bottom walls of the vessel, and consists of an outer wall member D and an inner wall member I) spaced therefrom, and intermediate wall members (I, d, which divide said lid horizontally into three separate chambers or jacket-spaces (Z d (i As shown in the drawings, the inner wall member D and the intermediate wall members at and d are made of such dimensions as to fit within the recess at the upper end of the vessel, the side walls of which recess are provided by the parts 9 of the plates G, while the outer wall member D of the lid is of such dimensions as to cover the entire surface of the upper end of the vessel. Plat'es H, each having a vertical part H inclosing the end of the space at, a vertical part it spaced inward therefrom, adapted to fit closely against the vertical part g of the plate G, and a horizontal flange H adapted to engage against the" horizontal flanges G of the plate Gr, are rigidly secured to the marginal edges of the inner and outer and the intermediate walls of the lid so as to hold them in proper spaced relation by means affording air tight joints. Rubber or other suitable gaskets J J are'preferably interposed between the horizontal engaging parts of the lid and of the upper end of the vessel so as to seal the vessel when the lid A is in place.

Any suitable locking device for rigidly seating the lid member in position on the vessel may be used. As shown herein, the same consists of a handle bar E, which has ends E, bearing against the top or outer 'wall member D of the lid and which projects at its ends beyond the side walls of the vessel. are provided with notches into which are adapted to swing links K piv'otally' connected to the upper end of the body and carrying locking members L having cams" L adapted when swung into horizontaluposition, as shown in Fig. 1, to engage-the ends E of the handle bar and through said handle-bar.cause the lid Dito be' forcibly seated against the upper end of the vessel. 'As shown in the drawings, the'locking members have curvedvends Z under which the finger or fingers may 'be'engaged to facilitate the release of the lockingfmem-- bers. The links K are pivoted'to lugs M rigidly secured to a rectangular bandor loop N which-embraces and reinforces the upper end of the vessel. The bottomof the vessel is also provided with a reinforcing As heat is imparted to air by convection rather than by reason of its conductivity, the temperature of the outside air will take much longer to affect the temperature of the contents ofmy improved vessel than in the case of a vessel having a wall of like thickness but containing only one air chamber, since it is necessary for the air in each jacket to be heated or cooled by convection before it can impart the raised or lowered temperature to the wall dividing'it from the next adjacent air jacket which in turn has the higher or lower temperature induced in it first by contact with the said wall and then by convection. The efficiency of the wall of the vessel as a non-conductor of heat is thus greatly increased by providing said wall with three or more jacket spaces.

The vessel illustrated in Figs. 1 to 3, and described above, is made of thin sheet metal, the sheet metal wall members being secured together at their joints by means of solder. In Figs. 4 and 5, Thave shown a vessel in every way similar to that illustrated in Figs. 1 to 3, except that the side walls and bottom of the vessel have the intermediate wallmembers made of sheet fiber. Walls made of fiber are much poorer conqductors than walls made of metal, so that in Figs. 4:, and 5, A" indicates the-vessel as a wholdBf, the side walls, 0", the bottom wall and D, the lid. The latter, together with. then-locking devices which hold it I 'rigidlyiseated within'the upper end of the The ends'of said handle bar vessel, is of exactly the same construction 'as-that above described. The side wall B 'comprises'in'ner' and outer walls 10 and 11 made of',thin..metallic plates, as in thecase above described,-and intermediate walls'12 and. 13 "lira-tileof'fiber board. I The bottom severalwall members of-the side wall are secured t,o .the 7 corresponding members of the-bottom wall by means affording air tight joints, thus; forming three jacket spacesinclosingr the sides and bottom of the vessel} side 1 and bottom wall members apart and supported one within ,JBlates :Gf 'in(d1QSe the spaces bey -'angle blocks-fhaving flanges extending between the side wall tween the upper ends of the side wall members and hold said members in proper spaced relation. Said plate is constructed to provide a recessed seat for the lid, as in the case first described. As shown in the drawings, the upper end of the fiber wall 12 is secured toqsaidplate G by angle plates 18, '18, engaging the opposite marginal edges of the plate 12, and a Z-plate 19 engages one marginaledge of the upper end of the wall 13 and holds it against the vertical part 9 of the plate G".

In Figs. 6 and 7, I have shown a construction of vessel in which the walls are made of metallic plates, as in the first case, but which is circular in form in cross section, and which is provided with four jacket spaces. In this case, 20 indicates the side wall of the vessel, and 21, the bottom wall of the vessel. The side wall of the vessel comprises inner and outer side wall members 22, 23, and three intermediate wall members 24, 25 and 26, dividing the space within the inner and outer side wall members into four jacket spaces 24, 25, 26, 27. The bottom wall member 21 likewise comprises inner and outer wall members 28 and 29, and three intermediate wall members 30, 31 and. 32, dividing said space between said inner and outer bottom wall members into four air spaces 30, 31, 32, 33. The side wall members and the bottom wall members are connected together as before and provide four jacket spaces 'inclosing the vessel, said wall members being spaced apart'by' angle blocks 34.

A vessel or receptacle having walls constructed in accordance with my invention herein described, is light and portable and at the same time is strong and durable and will stand much rough handling without injury. While its walls are made of conducting material, the use of the three or more jacket spaces inclosing the vessel, as described, provides the requisite heat insulation, so that its contents will retain for a long time unchan ed the temperature which it has when place within the vessel.

My improved vessel is an economical and efiicient substitute for the so-called thermos bottles now in use and its size is-not limited as in the case of such bottles by the difliculties and rapidly increasing expense in manufacturing large sizes, as manifestly it more air spaces, said side wall members and bottom wall members being connected together to provide twoor more non-communlcafiing jacket spaces one within the other inclosing the sides and bottom of said vessel, spacing pieces interposed between said side and bottom wall members at the junction of the latter, and means for closing the upper ends of the spaces between said side wall members adapted to provide a seat for a lid or closure for said vessel.

2. A non-heat conductin vessel having side walls and a bottom wa 1, each comprising inner and outer wall members of sheet' metal spaced from each other, and a plu- .rality of intermediate wall members of sheet fiber dividing the space between said inner and outer wall members into two or more air spaces, said side wall members and bot-- tom wall members being connected together to provide three or more'non-communicating jacket spaces one within the other inclosing the sides and bottom of said vessel, spacing pieces interposed between said side and bottom wall members at the junction of the latter, and means for closing the upper ends of the spaces between said side wall members and adapted to provide a seat for a lid or closure for said vessel and provided with flanges forming grooves to receive the upper edges of the intermediate side wall members.

In testimony, that I claim the foregoing as my invention I aflix my signature in the presence of two witnesses, this 24th day of lay A. D. 1911.

ANTON EVENSEN. .Witnesses:

G. R. WiLKiNS, T. H. ALFREns. 

